349928193 has 4 divisors (see below), whose sum is σ = 466570928. Its totient is φ = 233285460.

The previous prime is 349928177. The next prime is 349928213. The reversal of 349928193 is 391829943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 349928193 - 2⁴ = 349928177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349928143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58321363 + ... + 58321368.

It is an arithmetic number, because the mean of its divisors is an integer number (116642732).

Almost surely, 2^349928193 is an apocalyptic number.

It is an amenable number.

349928193 is a deficient number, since it is larger than the sum of its proper divisors (116642735).

349928193 is a wasteful number, since it uses less digits than its factorization.

349928193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116642734.

The product of its digits is 419904, while the sum is 48.

The square root of 349928193 is about 18706.3677126266. The cubic root of 349928193 is about 704.6816751121.

The spelling of 349928193 in words is "three hundred forty-nine million, nine hundred twenty-eight thousand, one hundred ninety-three".